A kind of pickling and passivation cleaning device for ice storage coil

Abstract

The present invention relates to the technical field of pipeline cleaning, and in particular to an in-pipe pickling and passivation cleaning device for an ice storage coil, comprising a water storage tank, wherein two symmetrically distributed connecting sleeves are placed on the top of the water storage tank, wherein one end of the connecting sleeve is closed and the other end is open, wherein one end of the connecting sleeve is connected to a sealing mechanism, and the sealing mechanism is used to seal the connection between the ice storage coil and the connecting sleeve, wherein a rotating rod is rotatably connected inside the water storage tank, and wherein the rotating rod is connected to a pressing mechanism, and the pressing mechanism is used to press and hold the two connecting sleeves on the top of the water storage tank; when the ice storage coil is pickled and passivated, the present invention presses and holds the connecting sleeve on the top of the water storage tank through a pressing plate, and at the same time, air can be inflated into an inflatable sealing ring, and the air sealing ring expands to fit tightly with the outer wall of the ice storage coil, thereby ensuring the stability performance between the connecting sleeve and the ice storage coil, and also ensuring the sealing performance between the connecting sleeve and the ice storage coil.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, in particular to an in-pipe pickling and passivation cleaning device for an ice storage coil. Background Art

[0002] The ice coil internal pickling and passivation cleaning device is a device specially used for cleaning and passivation of the inside of the ice coil. The device removes impurities and oxides inside the ice coil through two steps of pickling and passivation, and forms a dense passivation layer on its surface, thereby improving its corrosion resistance.

[0003] At present, most of the acid solutions or passivating agents are used to circulate inside the ice storage coils to pickle or passivate the inner wall of the ice storage coils. This pickling and passivation method requires connecting pipes at both ends of the ice storage coils and circulating the acid solutions or passivating agents inside the ice storage coils through water pumps.

[0004] However, the connection between the connecting pipe and the ice storage coil is prone to loosening when the acidic solution or passivating agent flows inside the ice storage coil, resulting in poor stability, and the acidic solution and passivating agent are prone to overflow from the connection between the connecting pipe and the ice storage coil. Summary of the invention

[0005] The object of the present invention is to provide an in-pipe pickling, passivation and cleaning device for ice storage coils to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pickling and passivation cleaning device for an ice storage coil comprises a water tank, wherein two symmetrically distributed connecting sleeves are placed on the top of the water tank, one end of the connecting sleeve is closed and the other end is open, and a sealing mechanism is connected to the open end of the connecting sleeve, and the sealing mechanism is used to seal the connection between the ice storage coil and the connecting sleeve, a rotating rod is rotatably connected inside the water tank, one end of the rotating rod passes through one of the side walls of the water tank, the rotating rod is connected to a pressing mechanism, and the pressing mechanism is used to press the two connecting sleeves on the top of the water tank, a filter screen plate is provided below the rotating rod and inside the water tank, an outlet pipe is connected above the filter screen plate and on the side wall of the water tank, the outlet pipe is connected to one of the connecting sleeves, a water inlet pipe is connected below the filter screen plate and on the side wall of the water tank, the water inlet pipe is connected to the other connecting sleeve, and the water inlet pipe is connected to a water pump, and the water pump is fixedly connected to the side wall of the water tank.

[0008] Preferably: the pressing mechanism includes a pressing plate arranged above the water tank, the pressing plate is connected to the top of the water tank through a symmetrically distributed first elastic component, a symmetrically distributed sliding rod is fixed to the bottom of the pressing plate, the sliding rod passes through the top of the water tank and is slidably connected to the top of the water tank, the sliding rod is connected to a traction assembly, and the traction assembly is used to pull the sliding rod, so that the pressing plate presses the connecting sleeve on the top of the water tank.

[0009] Preferably: the traction assembly includes a winding roller fixed to the outside of the rotating rod and symmetrically distributed, a symmetrically distributed traction rope is fixed to the outside of the winding roller, one end of the traction rope away from the winding roller is fixedly connected to the bottom of the sliding rod, and a guide roller for guiding the traction rope is fixed on the inner wall of the water tank.

[0010] Preferably: the sealing mechanism includes an inflatable sealing ring fixedly connected to the inner wall of the connecting sleeve, the inflatable sealing ring is connected to an air pipe, the air pipe passes through the top of the water tank and extends to the inside of the water tank, one end of the air pipe located inside the water tank is connected to an inflatable component, and the inflatable component is used to inflate the inside of the inflatable sealing ring.

[0011] Preferably: the inflation component includes an air pressure tube fixedly connected to the inner wall of the water tank, the air pressure tube is communicated with the air pipe, a piston is slidably connected to the inside of the air pressure tube, the piston is fixedly connected to a support rod, a push plate is fixed to the end of the support rod, the push plate is connected to the inner wall of the water tank through a second elastic component, the push plate is fixedly connected to a guide rod, the guide rod passes through the side wall of the water tank and is slidably connected to the side wall of the water tank, wherein a cam for squeezing the push plate is fixed to the outside of the rotating rod.

[0012] Preferably: a positioning plate is fixed to the outside of the rotating rod, a positioning rod passes through the top of the water tank, one end of the positioning rod is in contact with the side wall of the positioning plate, and a stopper is fixed to the other end of the positioning rod, and the stopper is connected to the top of the water tank through a third elastic component, wherein a positioning groove matching the positioning rod is provided on the side wall of the positioning plate.

[0013] Preferably, a rotating shaft passes through the filter screen plate, the rotating shaft is rotatably connected to the inner wall of the water tank, and one end of the rotating shaft passes through one of the side walls of the water tank.

[0014] Preferably: a water inlet and a water outlet are provided below the filter screen plate and on the side wall of the water storage tank, and valves are provided on the water inlet and the water outlet.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the ice storage coil is pickled and passivated, the present invention rotates the rotating rod. On the one hand, the rotating rod drives the pressure plate to move downward, and the connecting sleeve is pressed and held on the top of the water storage tank by the pressure plate, thereby effectively ensuring the stability of the connecting sleeve during the pickling and passivation of the ice storage coil. On the other hand, while the rotating rod rotates, air is inflated into the inflatable sealing ring. The air sealing ring expands and fits tightly with the outer wall of the ice storage coil, thereby connecting the connecting sleeve and the ice storage coil, thereby ensuring the stability of the connecting sleeve and the ice storage coil, and also ensuring the sealing performance between the connecting sleeve and the ice storage coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the external structure of the water storage tank in an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the internal structure of the water storage tank in an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the pressure plate connection structure in an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the connection structure of the connecting sleeve in an embodiment of the present invention.

[0020] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1-water storage tank; 2-connecting sleeve; 3-pressing mechanism; 31-pressing plate; 32-first elastic component; 33-sliding rod; 34-guide roller; 35-traction rope; 36-winding roller; 4-sealing mechanism; 41-cam; 42-push plate; 43-guide rod; 44-second elastic component; 45-air pressure tube; 46-air tube; 47-piston; 48-inflatable sealing ring; 49-support rod; 5-rotating rod; 6-water inlet pipe; 7-water outlet pipe; 8-water pump; 9-water filling port; 10-drainage port; 11-filter screen; 12-rotating shaft; 13-block; 14-third elastic component; 15-positioning rod; 16-positioning groove; 17-positioning plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0024] In one embodiment, see Figure 1 and Figure 2 , an in-pipe pickling passivation cleaning device for an ice storage coil, comprising a water storage tank 1, two symmetrically distributed connecting sleeves 2 are placed on the top of the water storage tank 1, one end of the connecting sleeve 2 is closed, and the other end of the connecting sleeve 2 is open, and a sealing mechanism 4 is connected to the open end of the connecting sleeve 2, and the sealing mechanism 4 is used to seal the connection between the ice storage coil and the connecting sleeve 2, and a rotating rod 5 is rotatably connected inside the water storage tank 1, and one end of the rotating rod 5 passes through one of the side walls of the water storage tank 1, and the rotating rod 5 is connected There is a pressing mechanism 3, which is used to press the two connecting sleeves 2 on the top of the water tank 1. A filter screen plate 11 is provided below the rotating rod 5 and inside the water tank 1. A water outlet pipe 7 is connected above the filter screen plate 11 and on the side wall of the water tank 1. The water outlet pipe 7 is connected to one of the connecting sleeves 2. A water inlet pipe 6 is connected below the filter screen plate 11 and on the side wall of the water tank 1. The water inlet pipe 6 is connected to the other connecting sleeve 2. The water inlet pipe 6 is connected to a water pump 8, and the water pump 8 is fixedly connected to the side wall of the water tank 1.

[0025] In this embodiment, when the ice storage coil is pickled and passivated, the ice storage coil is placed on the top of the water storage tank 1, and the two ends of the ice storage coil are respectively inserted into the two connecting sleeves 2. In order to facilitate the connection between the ice storage coil and the connecting sleeve 2, the water inlet pipe 6 and the water outlet pipe 7 can be hoses, so that the staff can place the connecting sleeve 2 at any position on the top of the water storage tank 1, and the connecting sleeve 2 can also be suitable for ice storage coils of different shapes or lengths. After the connecting sleeve 2 is connected to the ice storage coil, the water pump 8 is started. Under the action of the water pump 8, the acidic solution or passivating agent inside the water storage tank 1 enters the ice storage coil through the water inlet pipe 6, flows inside the ice storage coil, and finally enters the water storage tank 1 again through the water outlet pipe 7, thereby achieving the purpose of pickling and passivation of the ice storage coil. A filter screen 11 is provided inside the water storage tank 1, and the filter screen 11 is used to filter the acidic solution or passivating agent. The agent can play a filtering role, thereby preventing the impurities cleaned from the inside of the ice storage coil from entering the inside of the ice storage coil again with the acid solution or the passivating agent, effectively ensuring the pickling and passivation effect of the ice storage coil. In addition, before the pickling and passivation of the ice storage coil, the rotating rod 5 can also be rotated. While the rotating rod 5 rotates, on the one hand, the connecting sleeve 2 is pressed on the top of the water storage tank 1 through the pressing mechanism 3, effectively ensuring the stability between the connecting sleeve 2 and the ice storage coil. On the other hand, the rotating rod 5 seals the connection between the ice storage coil and the connecting sleeve 2 through the sealing mechanism 4, ensuring the sealing performance between the ice storage coil and the connecting sleeve 2, avoiding the shaking of the ice storage coil caused by the acid solution or the passivating agent flowing inside the ice storage coil and the loosening of the connection between the connecting sleeve 2 and the ice storage coil, and also preventing the acid solution or the passivating agent from flowing out from the connection between the connecting sleeve 2 and the ice storage coil.

[0026] See also Figure 3The pressing mechanism 3 includes a pressing plate 31 arranged above the water tank 1. The pressing plate 31 is connected to the top of the water tank 1 through a symmetrically distributed first elastic component 32. A symmetrically distributed sliding rod 33 is fixed to the bottom of the pressing plate 31. The sliding rod 33 passes through the top of the water tank 1 and is slidably connected to the top of the water tank 1. The sliding rod 33 is connected to a traction component, which is used to pull the sliding rod 33, so that the pressing plate 31 presses the connecting sleeve 2 on the top of the water tank 1;

[0027] After the end of the ice storage coil is inserted into the connecting sleeve 2, the two connecting sleeves 2 are placed under the two pressure plates 31 respectively, and then the rotating rod 5 is rotated. While the rotating rod 5 rotates, the sliding rod 33 is driven downward by the traction assembly, and the sliding rod 33 drives the pressure plate 31 to move downward until the pressure plate 31 presses the connecting sleeve 2 against the top of the water storage tank 1, thereby ensuring the stability of the connecting sleeve 2 during the pickling and passivation process of the ice storage coil, wherein the first elastic component 32 can be a spring, which can play a resetting role on the pressure plate 31.

[0028] See also Figure 3 The traction assembly includes a winding roller 36 fixed to the outside of the rotating rod 5 and symmetrically distributed, and a symmetrically distributed traction rope 35 is fixed to the outside of the winding roller 36. The end of the traction rope 35 away from the winding roller 36 is fixedly connected to the bottom of the sliding rod 33, and a guide roller 34 for guiding the traction rope 35 is fixed on the inner wall of the water storage tank 1;

[0029] When the rotating rod 5 rotates, the winding roller 36 is driven to rotate. When the winding roller 36 rotates, the traction rope 35 is pulled. Under the guidance of the guide roller 34, the traction rope 35 pulls the sliding rod 33, so that the sliding rod 33 drives the pressure plate 31 to move downward and presses the connecting sleeve 2 on the top of the water tank 1.

[0030] See also Figure 4 The sealing mechanism 4 includes an inflatable sealing ring 48 fixedly connected to the inner wall of the connecting sleeve 2, and the inflatable sealing ring 48 is connected to an air pipe 46, which passes through the top of the water storage tank 1 and extends to the inside of the water storage tank 1. One end of the air pipe 46 located inside the water storage tank 1 is connected to an inflatable component, and the inflatable component is used to inflate the inflatable sealing ring 48;

[0031] As the rotating rod 5 rotates, air is inflated into the air pipe 46 through the inflation assembly. The gas enters the inflation sealing ring 48 through the air pipe 46. The inflation sealing ring 48 expands and fits tightly with the outer wall of the ice storage coil, connecting the connecting sleeve 2 and the ice storage coil, ensuring the stability of the connecting sleeve 2 and the ice storage coil, and also ensuring the sealing performance between the connecting sleeve 2 and the ice storage coil.

[0032] See also Figure 4The inflation assembly includes an air pressure tube 45 fixedly connected to the inner wall of the water storage tank 1, the air pressure tube 45 is communicated with the air pipe 46, a piston 47 is slidably connected inside the air pressure tube 45, the piston 47 is fixedly connected to a support rod 49, a push plate 42 is fixed to the end of the support rod 49, the push plate 42 is connected to the inner wall of the water storage tank 1 through a second elastic component 44, the push plate 42 is fixedly connected to a guide rod 43, the guide rod 43 penetrates the side wall of the water storage tank 1 and is slidably connected to the side wall of the water storage tank 1, wherein a cam 41 for squeezing the push plate 42 is fixed outside the rotating rod 5;

[0033] As the rotating rod 5 rotates, it drives the cam 41 to rotate. As the cam 41 rotates, it squeezes the push plates 42 on both sides thereof. The push plates 42 drive the piston 47 to slide inside the air pressure tube 45 through the support rod 49, thereby squeezing the gas inside the air pressure tube 45, and then allowing the gas inside the air pressure tube 45 to enter the inflatable sealing ring 48 through the air pipe 46. The second elastic component 44 can play a resetting role on the push plate 42. The second elastic component 44 can be a spring. The guide rod 43 can play a limiting role on the push plate 42, which effectively ensures the stability of the push plate 42 when moving.

[0034] See also Figure 5 A positioning plate 17 is fixed to the outside of the rotating rod 5, a positioning rod 15 passes through the top of the water tank 1, one end of the positioning rod 15 is in contact with the side wall of the positioning plate 17, and a stopper 13 is fixed to the other end of the positioning rod 15. The stopper 13 is connected to the top of the water tank 1 through a third elastic component 14, wherein a positioning groove 16 adapted to the positioning rod 15 is provided on the side wall of the positioning plate 17;

[0035] When the rotating rod 5 rotates, it also drives the positioning plate 17 to rotate. When the pressing mechanism 3 presses the connecting sleeve 2 on the top of the water tank 1, the positioning groove 16 on the side wall of the positioning plate 17 is aligned with the positioning rod 15. Under the action of the block 13 and the third elastic component 14, the positioning rod 15 automatically enters the positioning groove 16. The positioning rod 15 fixes the positioning plate 17 through the positioning groove 16, and then fixes the rotating rod 5, thereby ensuring the pressing effect on the connecting sleeve 2. The third elastic component 14 can be a spring.

[0036] See also Figure 2 A rotating shaft 12 is passed through the filter screen plate 11, and the rotating shaft 12 is rotatably connected to the inner wall of the water storage tank 1, and one end of the rotating shaft 12 passes through one of the side walls of the water storage tank 1;

[0037] When the pickling and passivation of the ice storage coil is completed, the rotating shaft 12 is rotated, and the rotating shaft 12 drives the filter plate 11 to rotate, so that the filter plate 11 is flipped. At this time, the impurities on the surface of the filter plate 11 fall into the water storage tank 1, and are finally discharged from the water storage tank 1 along with the acidic solution and the passivating agent, so that the staff can clean the impurities on the surface of the filter plate 11 conveniently.

[0038] See also Figure 2 A water inlet 9 and a drain outlet 10 are provided below the filter screen plate 11 and on the side wall of the water storage tank 1, and valves are provided on the water inlet and the drain outlet 10;

[0039] The provision of the water inlet 9 and the drain outlet 10 facilitates the staff to replace the acid solution and the passivating agent inside the water storage tank 1 .

[0040] Working principle: When the ice storage coil is pickled and passivated, the ice storage coil is placed on the top of the water storage tank 1, and the two ends of the ice storage coil are respectively inserted into the two connecting sleeves 2. After the end of the ice storage coil is inserted into the connecting sleeve 2, the two connecting sleeves 2 are respectively placed under the two pressure plates 31, and then the rotating rod 5 is rotated. The rotating rod 5 drives the winding roller 36 and the cam 41 to rotate while the rotating rod 5 rotates. The winding roller 36 pulls the traction rope 35 while rotating, and under the guidance of the guide roller 34, the traction rope 35 pulls the sliding rod 33, so that the sliding rod 33 drives the pressure plate 31 to move downward and presses the connecting sleeve 2 on the top of the water storage tank 1, effectively ensuring the stability of the connecting sleeve 2 during the pickling and passivation of the ice storage coil. When the cam 41 rotates, it squeezes the push plates 42 on both sides thereof. The push plate 42 drives the piston 47 to slide inside the air pressure tube 45 through the support rod 49, thereby squeezing the gas inside the air pressure tube 45, and then the gas inside the air pressure tube 45 passes through the air pipe 46 enters into the inflatable sealing ring 48, and the inflatable sealing ring 48 expands and fits tightly with the outer wall of the ice storage coil, which plays a connecting role for the connecting sleeve 2 and the ice storage coil, ensuring the stability between the connecting sleeve 2 and the ice storage coil, and also ensuring the sealing performance between the connecting sleeve 2 and the ice storage coil. After the connecting sleeve 2 is connected to the ice storage coil, the water pump 8 is started. Under the action of the water pump 8, the acidic solution or passivating agent inside the water storage tank 1 enters into the ice storage coil through the water inlet pipe 6, and flows inside the ice storage coil, and finally enters into the water storage tank 1 again through the water outlet pipe 7, so as to achieve the purpose of pickling and passivation of the ice storage coil. A filter screen 11 is provided inside the water storage tank 1, and the filter screen 11 can filter the acidic solution or passivating agent, so as to avoid the phenomenon that the impurities cleaned from the inside of the ice storage coil follow the acidic solution or passivating agent to enter the inside of the ice storage coil again, effectively ensuring the pickling and passivation effect of the ice storage coil.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An in-pipe pickling and passivation cleaning device for an ice storage coil, comprising a water storage tank; characterized in that: Two symmetrically distributed connecting sleeves are placed on the top of the water storage tank, one end of the connecting sleeve is closed and the other end of the connecting sleeve is open, and one end of the connecting sleeve opening is connected to a sealing mechanism, which is used to seal the connection between the ice storage coil and the connecting sleeve, a rotating rod is rotatably connected inside the water storage tank, one end of the rotating rod passes through one of the side walls of the water storage tank, and the rotating rod is connected to a pressing mechanism, which is used to press the two connecting sleeves on the top of the water storage tank, a filter screen is provided below the rotating rod and inside the water storage tank, a water outlet pipe is connected above the filter screen and on the side wall of the water storage tank, the water outlet pipe is connected to one of the connecting sleeves, a water inlet pipe is connected below the filter screen and on the side wall of the water storage tank, the water inlet pipe is connected to the other connecting sleeve, and the water inlet pipe is connected to a water pump, which is fixedly connected to the side wall of the water storage tank; The pressing mechanism includes a pressing plate arranged above the water tank, the pressing plate is connected to the top of the water tank through a symmetrically distributed first elastic component, a symmetrically distributed sliding rod is fixed to the bottom of the pressing plate, the sliding rod passes through the top of the water tank and is slidably connected to the top of the water tank, and the sliding rod is connected to a traction assembly, which is used to pull the sliding rod, so that the pressing plate presses the connecting sleeve to the top of the water tank; The traction assembly includes a winding roller fixed to the outside of the rotating rod and symmetrically distributed, a symmetrically distributed traction rope is fixed to the outside of the winding roller, one end of the traction rope away from the winding roller is fixedly connected to the bottom of the sliding rod, and a guide roller for guiding the traction rope is fixed on the inner wall of the water storage tank; The sealing mechanism comprises an inflatable sealing ring fixedly connected to the inner wall of the connecting sleeve, the inflatable sealing ring is connected to an air pipe, the air pipe passes through the top of the water storage tank and extends to the inside of the water storage tank, and one end of the air pipe located inside the water storage tank is connected to an inflatable component, and the inflatable component is used to inflate the inside of the inflatable sealing ring; The inflation assembly includes an air pressure tube fixedly connected to the inner wall of the water storage tank, the air pressure tube is communicated with the air pipe, a piston is slidably connected inside the air pressure tube, the piston is fixedly connected to a support rod, a push plate is fixed to the end of the support rod, the push plate is connected to the inner wall of the water storage tank through a second elastic component, the push plate is fixedly connected to a guide rod, the guide rod passes through the side wall of the water storage tank and is slidably connected to the side wall of the water storage tank, wherein a cam for squeezing the push plate is fixed outside the rotating rod; A positioning plate is fixed on the outside of the rotating rod, and a positioning rod passes through the top of the water tank. One end of the positioning rod is connected to the side wall of the positioning plate, and a stopper is fixed to the other end of the positioning rod. The stopper is connected to the top of the water tank through a third elastic component, and a positioning groove is provided on the side wall of the positioning plate to match the positioning rod.

2. The ice storage coil internal pickling passivation cleaning device according to claim 1 is characterized in that: A rotating shaft is passed through the filter screen plate, and the rotating shaft is rotatably connected to the inner wall of the water tank. One end of the rotating shaft passes through one of the side walls of the water tank.

3. The ice storage coil internal pickling passivation cleaning device according to claim 2 is characterized in that: A water inlet and a water outlet are arranged below the filter screen plate and on the side wall of the water storage tank, and valves are arranged on the water inlet and the water outlet.

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